Merge "$ANDROID_BUILD_TOP isn't set for continuous builds."

r = re.compile(r'#define\s+(\S+)\s+((?:0x)?\d+)')

with open(os.environ['ANDROID_BUILD_TOP'] + '/bionic/libc/kernel/uapi/linux/input.h', 'r') as f:

with open('bionic/libc/kernel/uapi/linux/input.h', 'r') as f:

  for line in f:

    m = r.match(line)

    if m: